Credit: The Associated Press

In this Sept. 19, 2013, file photo, Detroit Tigers starting pitcher Doug Fister throws against the Seattle Mariners during a baseball game in Detroit. The Tigers have traded Fister to the Washington Nationals for three players announced Monday, Dec. 2. (AP Photo/Paul Sancya, File)

NEW YORK — On a night usually dominated by news of players let loose, the Washington Nationals and Oakland Athletics filled pitching needs with trades.

Washington obtained right-hander Doug Fister from Detroit for infielder Steve Lombardozzi and left-handers Robbie Ray and Ian Krol on Monday. Oakland acquired closer Jim Johnson from Baltimore for infielder Jemile Weeks and a player to be named.

Fister was 14-9 with a 3.67 ERA last season for the AL Central champions, who last month traded slugging first baseman Prince Fielder to Texas for second baseman Ian Kinsler.